<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区 -->
    <el-card>
      <el-row>
        <el-col>
          <el-alert
            :closable="false"
            title="添加商品信息"
            type="info"
            center
            show-icon
          ></el-alert>
        </el-col>
      </el-row>

      <!-- 步骤条 -->
      <el-steps
        align-center
        :space="200"
        :active="activeindex - 0"
        finish-status="success"
      >
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>

      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-position="top"
        label-width="100px"
      >
        <!-- 左侧tab栏 -->
        <el-tabs
          @tab-click="tabClicked"
          :before-leave="beforeTabsleave"
          v-model="activeindex"
          :tab-position="'left'"
        >
          <el-tab-pane name="0" label="基本信息">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addForm.goods_price" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input v-model="addForm.goods_weight" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addForm.goods_number" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                style="width: 300px"
                v-model="addForm.goods_cat"
                expand-trigger="hover"
                :options="Catelist"
                :props="cateprops"
                @change="handlChange"
              >
              </el-cascader>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane name="1" label="商品参数">
            <el-form-item
              :label="item.attr_name"
              v-for="item in manyTableData"
              :key="item.attr_id"
            >
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox
                  border
                  v-for="(cb, i) in item.attr_vals"
                  :key="i"
                  :label="cb"
                ></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane name="2" label="商品属性">
            <el-form-item
              :label="item.attr_name"
              v-for="item in onlyTableData"
              :key="item.id"
            >
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <el-tab-pane name="3" label="商品图片">
            <el-upload
              :action="uploadurl"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              list-type="picture"
              :headers="headersObj"
              :on-success="handlSuccess"
            >
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
            <el-dialog  width="50%" title="图片预览" :visible.sync="previewvisible">
                 <img class="priviewImg" :src="PreviewPath" alt="">
            </el-dialog>
          </el-tab-pane>

          <el-tab-pane name="4" label="商品内容">
               <quill-editor v-model="addForm.goods_introduce"></quill-editor>
               <el-button @click="addGoods" class="btnadd" type="primary">添加商品</el-button>
          </el-tab-pane>
          <el-tab-pane name="5" label="完成">完成</el-tab-pane>
        </el-tabs>
      </el-form>
    </el-card>
  </div>
</template>
<script>
import _ from 'lodash'
export default {
  data() {
    return {
      activeindex: '0',
      addForm: {
        goods_name: '',
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: [],
        pics:[],
        goods_introduce:'',
        attrs:[],
      },
      addFormRules: {
        goods_name: [
          { required: true, message: '请输入商品名称', trigger: 'blur' },
        ],
        goods_price: [
          { required: true, message: '请输入商品价格', trigger: 'blur' },
        ],
        goods_weight: [
          { required: true, message: '请输入商品重量', trigger: 'blur' },
        ],
        goods_number: [
          { required: true, message: '请输入商品数量', trigger: 'blur' },
        ],
      },
      selectedKyes: [],
      Catelist: [],
      cateprops: {
        value: 'cat_id',
        label: 'cat_name',
        children: 'children',
      },
      manyTableData: [],
      onlyTableData: [],
      uploadurl:'http://127.0.0.1:8888/api/private/v1/upload',
      headersObj:{
         Authorization:window.sessionStorage.getItem('token')
      },
      PreviewPath:'',
      previewvisible:false,
      
    }
  },
  created() {
    this.getCatelist()
  },
  methods: {
    //获取商品分类列表
    async getCatelist() {
      const { data: res } = await this.$http.get('categories')
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品分类失败！')
      }

      this.Catelist = res.data
    },
    handlChange() {
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = []
        return this.$message.warning('只能选择三级哦')
      }
    },
    beforeTabsleave(activename, oldactivename) {
      if (oldactivename === '0' && this.addForm.goods_cat.length !== 3) {
        this.$message.warning('请先选择分类!')
        return false
      }
    },
    async tabClicked() {
      if (this.activeindex === '1') {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          { params: { sel: 'many' } }
        )
        if (res.meta.status !== 200) {
          return this.$message.warning('获取失败！')
        }
        console.log(res.data)
        res.data.forEach((item) => {
          item.attr_vals =
            item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ')
        })
        this.manyTableData = res.data
      } else if (this.activeindex === '2') {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          { params: { sel: 'only' } }
        )
        if (res.meta.status !== 200) {
          return this.$message.warning('获取J静态属性失败！')
        }
        this.onlyTableData = res.data
      }
    },
    handlePreview(file){
      this.PreviewPath=file.response.data.url
      this.previewvisible=true;
    },
    handleRemove(file){
        const filepath  = file.response.data.tmp_path
       const i  = this.addForm.pics.findIndex(x => x.pic === filepath)
       this.addForm.pics.splice(i,1)
       console.log(this.addForm)
    },
    handlSuccess(res){
      const picInfo = {pic:res.data.tmp_path}
      this.addForm.pics.push(picInfo)
      console.log(this.addForm)
    },
     addGoods(){
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) {
            return this.$message.error('请填写必要的选项！')
        }
        // 执行添加的业务逻辑
        // lodash   cloneDeep(obj)
        const form = _.cloneDeep(this.addForm)
        form.goods_cat = form.goods_cat.join(',')
        // 处理动态参数
        this.manyTableData.forEach(item => {
          const newInfo = {
            attr_id: item.attr_id,
            attr_value: item.attr_vals.join(' ')
          }
          this.addForm.attrs.push(newInfo)
        })

        // 处理静态属性
        this.onlyTableData.forEach(item => {
          const newInfo = { attr_id: item.attr_id, attr_value: item.attr_vals }
          this.addForm.attrs.push(newInfo)
        })
        form.attrs = this.addForm.attrs
        console.log(form)

        const { data: res } = await this.$http.post('goods', form)
        if (res.meta.status !== 201) {
         return this.$message.error('添加商品失败！')
        }
          this.$message.success('添加商品成功！')
        //   console.log(res)
         this.$router.push('/goods')
        
      })
     },
  },
  computed: {
    cateId() {
      if (this.addForm.goods_cat.length === 3) {
        return this.addForm.goods_cat[2]
      }
      return null
    },
  },
}
</script>
<style  scoped>
.el-steps {
  margin: 16px 0;
}
.el-tabs {
  margin: 35px 0;
}
.el-checkbox {
  margin: 0 5px 0 0 !important;
}
.priviewImg{
    width: 100%;
}
.btnadd{
    margin-top: 14px;
}
</style>